Determine the number of protons and the number of electrons in each ion. a. Al3 b. Se2- c. Ga3 d. Sr2

Apendulum has a mass of 1.5 kg and starts at a height of 0.4 m. if it is released from rest, how fast is it going when it reaches the lowest point of its path? acceleration due to gravity is g = 9.8 m/s2. a. 2.8 m/s b. 0 m/s c. 5.9 m/s d. 4.3 m/s

In what direction does an applied force move an object

How are positive ions different from neutral atoms